What a pathetic watered down version of the console versions.
The general graphics and audio aren't much better. Every cutscene in the game has no sound, making them extremely boring to watch, and the story just plain dull and lifeless. The graphics and soundtrack are ok.
What is even more annoying is being errand boy, having to run from one place to another, performing boring tasks for people who can't even finish their homework! What the heck is the point of recruting them into the Dumbledore's Army when they can't even complete their boring tasks themselves. So you, Harry Potter, the most famous wizard in Britain, must do the work for students who wished to join the Dumbledore's Army in the first place!
The difficulty is not much either. There are hardly any battles in the game, and those that are present are completely boring and quick to finish. The AI of the enemy just makes this worse, as the opponent(s) will often just stand there, waiting for you to cast a spell, and even the last battle is the most dull one I have ever fought in my life.
Lastly, hogwarts. The school is quite big, but this just makes moving around a long and boring business. Not only that, but what is the point of making a open-world game, when there is just about nothing to do in it? Once you've swept the castle and collected all the newspapers and fixed all the broken glass, that's it. There is nothing more to do. It is extremely unwise to make an open-world game were you hardly do anything in. It just makes the game all the more boring. So my advice: just don't get this game.